An organic material and plant vine chopper assembly has two plant vine chopper rotor drum assemblies that chop plant vines and other organic material. Each rotor drum assembly has a plurality of rotor rings each ring having a plurality of angled blades that effectively cooperate with each other to guard each blade and the drum against the wrapping of clogging fibrous strands and other clogging material around the drum. Each chopper rotor drum assembly incorporates a plurality of rotor rings spaced along and encircling and attached to a main drum tube and distributed in a cutting zone along and surrounding the longitudinal rotational axis of the drum tube with each rotor ring having a pair or a plurality of pairs of cutting blades attached to respective alternately angled mounting tabs that alternate to the left and to the right to the general plane of the rotor ring.

A shredder (1) is provided for comminuting organic material to form shreds. The shredder has a shredding chamber (2) provided with rotatable cutting devices (3), wherein the shredder (1) furthermore includes a fan chamber (6) containing a fan (7) which is connected to the shredding chamber (2) via a passage (4), wherein the fan (7) is configured to generate a suction force which will suck the shreds out of the shredding chamber via the passage and will remove these from the fan chamber (6) via a discharge opening (8). In contrast to the known shredders, this shredder (1) no longer has a discharge opening in the shredding chamber and, in addition, no longer requires a calibration grille.

A plant vine chopper rotor drum assembly is provided for use in chopping machines. The rotor drum assembly has a plurality of rotor rings each ring having a plurality of angled blades that effectively cooperate with each other to guard each blade and the drum against the wrapping of clogging fibrous strands and other clogging material around the drum. The chopper rotor drum assembly incorporates a plurality of rotor rings spaced along and encircling and attached to a main drum tube and distributed in a cutting zone along and surrounding the longitudinal rotational axis of the drum tube with each rotor ring having a pair or a plurality of pairs of cutting blades attached to respective alternately angled mounting tabs that alternate to the left and to the right to the general plane of the rotor ring.

A system and method for an engaging tool. Removing debris, trees and clearing land and paths requires the use of specific tool and machinery. To grind, break and shred wood, the machines must be fitted with proper attachments and engaging tools. One tool includes a front a front face and a back face connected by two opposing side faces and an opposing top face and base face. The front face has a concave shape and an outer channel which extends inwardly into the front face. The front face also has a tube a tube extending outwardly from said front face. The tube is located within the outer channel.

A no weld replaceable cutting tooth holder system facilitates replacement of cutting teeth on a cutting disc with improved durability, balance, and resistance to connection defects. The system includes a cutting disc and a holder having a connector and a socket. The holder is secured to the cutting disc without welding. The socket is configured for securement of a cutting tooth onto the cutting disc.

A regenerated cutting blade to be mounted and used in a shearing type grinder. The cutting blade includes a fixed part and a blade tip projecting outward from this fixed part, in which the blade tip has a leading edge pointed toward the rotating direction. Side edges 110 on the lateral side outer periphery including the blade tip, the leading end edge and the side edges are regenerated and formed by build-up welding. The lateral sides are provided with slip preventive build-up welding parts 111, 112, 113 extending from the side edges 110 toward the central side of its rotation or the central direction, and the build-up welding parts are formed by three regenerating processes.

An impact cutter blade and holder system is disclosed. The impact cutter blade and holder system includes: a cutter disk, a plurality of impact holders, and a plurality of impact cutter blades. The cutter disk has a central axis about which the cutter disk is configured to rotate. The plurality of impact holders are secured to the cutter disk. The plurality of impact cutter blades is secured to the plurality of impact holders.

A cutter assembly is presented for mounting to one or more hammers of a rotor assembly of a grinding machine. The cutter assembly includes a base, a tip mount, at least one cutting edge and a wedge releasably secured to the tip mount, and a fastener securing the base and the tip mount to the hammer. The base includes a truncated pyramid key and the tip mount includes a corresponding truncated pyramid keyway. A wedge edge angle is defined between a wedge top face and side face. A cutting edge angle is defined between a cutting edge knife face and top face. The cutting edge angle can be larger than the wedge edge angle. The cutting edge angle can be in the range of about 30 to about 40 and a wedge edge angle can be in the range of about 40 to about 45.

The present invention relates to a shear bar, in particular, for a wood chipper for producing wood chips, having at least one cutting edge formed from a hard material and one support surface leading to the cutting edge, wherein the cutting edge is formed from a plurality of hard material elements arranged side by side along the cutting edge on at least one basic body. A strength-optimized realization with a long service life and a simple assembly is achieved as a result of the hard material elements being fastened on the at least one basic body by means of an adhesive bond.

A cutter assembly is presented for mounting to one or more hammers of a rotor assembly of a grinding machine. The cutter assembly includes a base, a tip and a fastener securing the base and the tip to the hammer. The base includes a key having side walls extending upwardly from a surface of the base and spatially oriented as sides of a pyramid that is truncated before reaching their apex. The tip includes a keyway having side walls extending inwardly from a lower surface into a body of the tip and spatially oriented as sides of a pyramid. The keyway mates with the key of the base. The tip includes at least one, and preferably two, cutting edges disposed on opposing ends of the tip. In one embodiment, the tip is reversibly mountable to the base such that the cutting edges may be selectively used within grinding operations. In one embodiment, at least a portion of side walls of the truncated pyramid key and keyway are curved in a plane parallel to the surface of the base.